From patchwork Fri Mar 1 05:25:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13578035 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1BE34C5475B for ; Fri, 1 Mar 2024 05:27:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AcrkjJrB5mZ7l7qWTApr78O9oeMdzi/NfqUj3eP28JA=; b=SXZqYuIomj7DfS AQDyv8C1q3IXZgg9LqH9SKnr21EWYp3OmOVvzJc6rb/sACH0xSIWILyucninw9AS0QL+E2jywGE7W v9E71f296Ns24+Ei8gjckNfqgghdq4r14tO3VYGoloMhXPY5T7UQxc8qKaX/Vr3saAlqQ8iDd9LYC 2JpiBoWddYCIALq9Q+NR6hfBJc98a/7bqtLx9aTjfmOxrkzrCPUQouvng8xf1DqLkKUsqhFvgoLmo wK7+73hYUb2RayTa5FCMzBtEdy2I3jt7lpUmVT0FBulK3oqvvaSDuxMmCGN85Imkudt5CDSWFZOVD n2cO8RXwyKjd0wxqeT2Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfvQe-0000000GQa3-2A8H; Fri, 01 Mar 2024 05:27:28 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfvPt-0000000GQ3o-0q5E for linux-arm-kernel@lists.infradead.org; Fri, 01 Mar 2024 05:26:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1709270801; x=1740806801; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cf1ERUI8W0KgkYZjZBGlnJlrKnBS1Q66fpRRN2HpQMY=; b=Z76FPPSK8OIEuFALIiY1yGogGy8We2Cn4fB3jV/AqqZsvINHTSreyynJ dYQABek295sv1rO9U/D8XBjKJ1ERn8jLMpprANCOqfDwYbadRP89bEktP 3Yv2KC6pn1CXKqJ9c+2sYmyjuswDMX/+hceVK6ii+syRAsGKGgon5R0bC +3vI0ZyP69G4l8hBcW3b0ymwY73z5IiNKloulLS4+nIazuVFm1c4ZIsuG B5NoUuU8FKyxKQOVb3J41lPiUsdSqIcgHbXfSySCemVbPE0hY/EtT3fSn QIR/B17RAhDYrFWg1+eUyUtCKB5A92wu1qaZ6BZ9uPHIFj1PiYj+bC0jA g==; X-CSE-ConnectionGUID: NiYMRsuYQMSobLMasNu+DA== X-CSE-MsgGUID: suMdi/RQTVKuzaHjFPpCjg== X-IronPort-AV: E=Sophos;i="6.06,195,1705388400"; d="scan'208";a="17055836" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 29 Feb 2024 22:26:40 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 29 Feb 2024 22:26:37 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Thu, 29 Feb 2024 22:26:29 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , CC: , , , , , , , , "Manikandan Muralidharan" , Durai Manickam KR Subject: [PATCH v9 5/8] drm: atmel-hlcdc: add DPI mode support for XLCDC Date: Fri, 1 Mar 2024 10:55:31 +0530 Message-ID: <20240301052534.38651-6-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240301052534.38651-1-manikandan.m@microchip.com> References: <20240301052534.38651-1-manikandan.m@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240229_212641_284788_D469A91A X-CRM114-Status: GOOD ( 15.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for Display Pixel Interface (DPI) Compatible Mode support in atmel-hlcdc driver for XLCDC IP along with legacy pixel mapping. DPI mode BIT is configured in LCDC_CFG5 register. Signed-off-by: Manikandan Muralidharan [durai.manickamkr@microchip.com: update DPI mode bit using is_xlcdc flag] Signed-off-by: Durai Manickam KR --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 98a98b5fca85..fdd3a6bc0f79 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -30,10 +30,12 @@ * * @base: base CRTC state * @output_mode: RGBXXX output mode + * @dpi: output DPI mode */ struct atmel_hlcdc_crtc_state { struct drm_crtc_state base; unsigned int output_mode; + u8 dpi; }; static inline struct atmel_hlcdc_crtc_state * @@ -170,6 +172,8 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) if (adj->flags & DRM_MODE_FLAG_NHSYNC) cfg |= ATMEL_HLCDC_HSPOL; + } else { + cfg |= state->dpi << 11; } regmap_update_bits(regmap, ATMEL_HLCDC_CFG(5), @@ -177,7 +181,9 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) ATMEL_HLCDC_VSPDLYS | ATMEL_HLCDC_VSPDLYE | ATMEL_HLCDC_DISPPOL | ATMEL_HLCDC_DISPDLY | ATMEL_HLCDC_VSPSU | ATMEL_HLCDC_VSPHO | - ATMEL_HLCDC_GUARDTIME_MASK | ATMEL_HLCDC_MODE_MASK, + ATMEL_HLCDC_GUARDTIME_MASK | + (crtc->dc->desc->is_xlcdc ? ATMEL_XLCDC_MODE_MASK | + ATMEL_XLCDC_DPI : ATMEL_HLCDC_MODE_MASK), cfg); clk_disable_unprepare(crtc->dc->hlcdc->sys_clk); @@ -380,7 +386,15 @@ static int atmel_hlcdc_crtc_select_output_mode(struct drm_crtc_state *state) hstate = drm_crtc_state_to_atmel_hlcdc_crtc_state(state); hstate->output_mode = fls(output_fmts) - 1; - + if (crtc->dc->desc->is_xlcdc) { + /* check if MIPI DPI bit needs to be set */ + if (fls(output_fmts) > 3) { + hstate->output_mode -= 4; + hstate->dpi = 1; + } else { + hstate->dpi = 0; + } + } return 0; } @@ -484,6 +498,7 @@ static struct drm_crtc_state * atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) { struct atmel_hlcdc_crtc_state *state, *cur; + struct atmel_hlcdc_crtc *c = drm_crtc_to_atmel_hlcdc_crtc(crtc); if (WARN_ON(!crtc->state)) return NULL; @@ -495,6 +510,8 @@ atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) cur = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state); state->output_mode = cur->output_mode; + if (c->dc->desc->is_xlcdc) + state->dpi = cur->dpi; return &state->base; }